drd: Ignore ordering introduced by a mutex used in the thread creation wrapper

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14015 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/drd/drd_clientobj.h b/drd/drd_clientobj.h
index d615d79..b3190ab 100644
--- a/drd/drd_clientobj.h
+++ b/drd/drd_clientobj.h
@@ -68,6 +68,7 @@
    ExeContext*     first_observed_at;
    MutexT          mutex_type;      // pthread_mutex_t or pthread_spinlock_t.
    int             recursion_count; // 0 if free, >= 1 if locked.
+   Bool            ignore_ordering;
    DrdThreadId     owner;           // owner if locked, last owner if free.
    struct segment* last_locked_segment;
    ULong           acquiry_time_ms;